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ZFA-V-520 – Diode Laser at 520 nm

The ZFA-V-520 long coherent length diode laser is a high-precision 520 nm green laser source designed for advanced scientific, metrology, and industrial applications requiring excellent coherence and wavelength stability. With a coherence length exceeding 1 meter and superior beam quality in Near TEM00 mode, this laser enables highly accurate interference measurements, holography, fluorescence excitation, and Raman spectroscopy. The ZFA-V-520 is an ideal solution for precision optical measurements, spectroscopy systems, and scientific instrumentation requiring stable and coherent green laser emission.

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Features
  • Long coherence length >1 m for interferometry and holography
  • Stable 520 nm green wavelength for fluorescence and Raman applications
  • Excellent beam quality in Near TEM00 mode
  • High power stability down to <1% RMS over 4 hours
  • Compact and robust design for easy system integration
  • Low beam divergence for precise optical alignment
  • Long operational lifetime up to 10,000 hours
Applications
  • Holography and interferometry
  • Raman spectroscopy
  • Fluorescence excitation and analysis
  • Flow cytometry and DNA sequencing
  • Optical metrology and precision measurement
  • Laser radar (LiDAR) and sensing
  • Photolithography and microfabrication
  • Scientific research and optical instrumentation
Specifications
Parameter Specification
Model ZFA-V-520
Laser Type Long coherent length diode laser
Central Wavelength 520 ± 1 nm
Operating Mode Continuous Wave (CW)
Output Power >1, 2, 3, …, 10 mW
Power Stability (RMS, 4h) <3%, <2%, <1%
Transverse Mode Near TEM00
Coherence Length >1 m
M² Factor <1.5
Beam Diameter (1/e²) ~1.5 mm
Beam Divergence (Full Angle) <1.5 mrad
Polarization Ratio >50:1 (>100:1 optional)
Polarization Orientation Horizontal ±5° (Vertical optional)
Warm-up Time <5 minutes
Beam Height from Base Plate 30 mm
Operating Temperature 20 – 30 °C
Power Supply QDI-S-F (100–240 VAC)
Expected Lifetime 10,000 hours
Warranty 1 year